Question

Write a java program that perform the following:

1. Ask a user ti enter 10 student test score on a test (100 point test and save the score in an array

2. Iterate through the array to find the average and highest of these score, print them out

3 Count how many student score below average and print them out

4 . Instructor decide to curve the student score using square root curving method( take the square root of the raw score for each student and multiilied it with 10) Print out the score after curving and calculate the new averagr.

Sample out

Enter score: 90

Enter score: 70

(Enterscore 10 times)

Average: 74.80

Highest score 95

Number of student scored below average: 4

Score after curving: 94.9, 83.7,..., 90

New average: 85.60

Answer 1

import java.util.*;

public class Demo {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int ar[] = new int[10];
        for(int i=0;i<10;i++){
            System.out.print("Enter score:");
            ar[i]=sc.nextInt();
        }
        float sum=0;
        int max=ar[0];
        float avg;
        for(int i=0;i<10;i++) {
          sum=sum+ar[i];
          if(max<ar[i]) max=ar[i];
        }
        avg=sum/10;
        System.out.printf("Average: %.2f\n",avg);
        System.out.println("Highest score: "+max);
        int count=0;
        for(int i=0;i<10;i++) {
         if(ar[i]<avg)
         {
             count++;
         }
        }
        System.out.println("Number of student scored below average: "+count);
        double ar2[]= new double[10];
        System.out.print("Score after curving: ");
        double sqrtsum=0;
        for(int i=0;i<10;i++) {
            double num = Math.sqrt(ar[i]);
            ar2[i]=num*10;
            if(i==9)System.out.printf("%.2f",ar2[i]);
            else System.out.printf("%.2f,",ar2[i]);
            sqrtsum=sqrtsum+ar2[i];
        }
        double sqrtavg=sqrtsum/10;
        System.out.printf("\nNew average: %.2f",sqrtavg);
        }
}

i am sharing the code screenshot in ide for reference for indentation

OUTPUT: